Dave Robsons Challenger R/T

[Anonymous]

Ten TO GO!

Then back to some sort of sanity again, whatever that is???

Bacca and out!

[Ivor]

I still think the sealer is the way to go, then while those heads are running, Dave needs to sell his body on the streets of Newcastle to make the money for the Stealths...simples!

[Dave-R]

I think Dave was merely underlining the fact John, that ally heads etc. weren't an option in resolving his issues and therefore didnt see the point in your persistence on the ally head point. He was fully aware of their benefits.

Hurrah! Someone understands me.

[Dave-R]

I still think the sealer is the way to go, then while those heads are running, Dave needs to sell his body on the streets of Newcastle to make the money for the Stealths...simples!

Been there done that. I ended up out of pocket by £30.

[Ivor]

As a gigolo Dave, the girls are supposed to pay YOU! not the other way around

[drewcrane]

I still think the sealer is the way to go, then while those heads are running, Dave needs to sell his body on the streets of Newcastle to make the money for the Stealths...simples!

Been there done that. I ended up out of pocket by £30.

what you got a citation for indecent exposure?

[Anonymous]

Since when did you become sensible Clivey???

Turncoat, I thought you was on my side!!!

Bacca, doing what comes naturally?

Not me John. I nearly fell out of my bedroom window yesterday evening. That was far from sensible, as was the thing I was doing at the time.

[Dave-R]

I had to dive out of a bedroom window once. The less said about that the better I think.

[Anonymous]

I hid in a cupboard and me mate squeezed under the bed

[jerry]

I nearly fell out of my bedroom window yesterday evening. That was far from sensible, as was the thing I was doing at the time.

Were you ironing the curtains again Clivey

[drewcrane]

I had to dive out of a bedroom window once. The less said about that the better I think.

So that is how you cracked your head

[Anonymous]

I hid in a cupboard and me mate squeezed under the bed

jesus I bet that was some cupboard Bob. Anyway, at least you didnt say it was you who squeezed under the bed cos I wouldnt have had ANY of that son

[Anonymous]

Thread is officially finished at 1001, wasn't that carpet cleaner or summit like dat?

As we now now that Dave has iron in his blood, then what can we as mere Mortals do to help???

I will post some piccys of the Hauser head on Parts and see if any of the iron only Guys are intersted???

bacca and Out!

[Dave-R]

Just found out I have been running this engine for years with 60thou quench distance in the heads when it was supposed to be 40thou. 20 thou too much.

Basically quench is not effective at that distance and my compression ratio a lot less than it should be.

Plus since I fitted a thicker composite gasket I have been running 19 thou more than that! So my 12.25 runs at the Nats recently were done with 79 thou quench distance. 39 too much.

So I will be putting that right next week.

Can anyone tell me how much needs to come off the intake if you remove 39 thou from the heads?? I have forgotten how you work that out.

[jerry]

That question was doing my head in, as I knew I should know, but couldn't remember, so had to check out my old Direct Connection Engine Book.

Info as written in the Head Milling Spec's section . . .

For 73.5 cc chamber heads remove 0.0062" from head surface per 1cc of chamber volume.

For 79,81 & 83 cc chamber heads, remove 0.0042" from head surface per 1cc of chamber volume.

For each 0.010" removed from the head, 0.0123" must be removed from the intake face of the head

On the basis you want to remove 0.039" from the head face, thats 0.049" off the inlet, well as good as 0.049" give or take a few tenths.